hello
The resource guide mentions affixing a backing board to a stretched canvas. How might this be accomplished? If the reason for using a stretched canvas rather than a panel or canvas mounted to a panel, is that the stretched canvas is large and weight is an issue, will the backing panel add weight? Can it be done in pieces as wood that large is not readily available? Does the guide mean to stretch the canvas around the wood and staple it? Or does it mean to glue panels to the back of the canvas?
Hi
Backing boards are meant to help protect a canvas painting by providing a rigid backing which can prevent damage from the reverse. It is generally a lightweight board like Fomecore, acid free cardboard, Coroplast, or another lighter panel which is screwed to the stretcher bars from the reverse. It is not the same as stretching canvas onto a panel, etc
It is absolutely possible (and common practice) to back a large canvas painting with several boards, particularly if the stretcher bars have cross bars. Here is an article that describes how to attach backing boards and lists a couple of material choices: https://justpaint.org/backing-boards-for-canvas-paintings/
